Why do Americans use nicknames when addressing one another?

A Nicknames are easier to remember.

B Americans are formal people.

C Nicknames help to create a casual atmosphere.

D Nicknames are never to be used in daily life.

When do Americans prefer to use their family names?

Awhen they are working	Cwhile in formal situations
Bwhen writing a business letter	Dwhen they are in trouble

Which American president was known as “The Gipper”?

In a traditional society, how could the use of one’s family name be described?